A method and device for detecting the occlusion state of automotive radar
An automotive radar and state technology, which is applied to measurement devices, radio wave measurement systems, instruments, etc., can solve problems such as threatening driving safety and affecting the final detection results of the measured target, avoiding the calculation amount, the detection method is simple, and the distance is improved. The effect of resolution
Active Publication Date: 2022-03-08
BEIJING AUTOROAD TECH CO LTD
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[0003] When in use, if the millimeter-wave radar is blocked by snow, mud, etc., it may affect the final detection result of the measured target, thereby threatening driving safety
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[0060] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only It is a part of the embodiments of this application, not all of them. The components of the embodiments of the application generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without...
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The present application provides a method and device for detecting the occlusion state of an automotive radar, wherein the method includes: transmitting a first chirp signal with a frequency modulation bandwidth of a first preset value in a preset direction through a millimeter-wave automotive radar; The value of a preset value is 0.1GHZ-12GHZ; the first reflected signal corresponding to the first chirp signal is received through the millimeter-wave automotive radar; the intensity of the first reflected signal is detected; according to the first reflected signal The intensity of the millimeter-wave automotive radar determines the occlusion state. By setting the frequency modulation slope of the millimeter-wave radar in the embodiment of the present application, the range resolution of the millimeter-wave radar can distinguish obstacles at a short distance of the millimeter-wave radar, and the detection method is simple and has high reliability.
Description
technical field [0001] The present application relates to the technical field of automatic control, in particular to a method and a device for detecting an automobile radar occlusion state. Background technique [0002] Automotive radar is very important to improve the driving safety performance of the car. Among them, the millimeter-wave radar in the automotive radar has the advantages of high distance resolution, low radiation power, and small size, so it is widely used in the fields of advanced driver assistance systems and automatic driving. The basic working principle of millimeter-wave radar is to continuously and periodically modulate the frequency of the transmitted signal, and analyze the signal frequency at the time of transmission and reception, so as to obtain the relative distance and speed of the measured target. [0003] When in use, if the millimeter-wave radar is blocked by snow, mud, etc., it may affect the final detection result of the target to be measur...
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IPC IPC(8): G01S7/40
CPCG01S7/40G01S7/4039
Inventor 高明亮
Owner BEIJING AUTOROAD TECH CO LTD